EP0160527A3 - Flocculants and processes for their preparation - Google Patents

Flocculants and processes for their preparation Download PDF

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Publication number
EP0160527A3
EP0160527A3 EP85302925A EP85302925A EP0160527A3 EP 0160527 A3 EP0160527 A3 EP 0160527A3 EP 85302925 A EP85302925 A EP 85302925A EP 85302925 A EP85302925 A EP 85302925A EP 0160527 A3 EP0160527 A3 EP 0160527A3
Authority
EP
European Patent Office
Prior art keywords
flocculants
processes
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85302925A
Other versions
EP0160527A2 (en
EP0160527B1 (en
Inventor
Tony Whittaker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ciba Specialty Chemicals Water Treatments Ltd
Original Assignee
Allied Colloids Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10560279&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0160527(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Allied Colloids Ltd filed Critical Allied Colloids Ltd
Publication of EP0160527A2 publication Critical patent/EP0160527A2/en
Publication of EP0160527A3 publication Critical patent/EP0160527A3/en
Application granted granted Critical
Publication of EP0160527B1 publication Critical patent/EP0160527B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C02F1/36—Treatment of water, waste water, or sewage with mechanical oscillations ultrasonic vibrations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/03—Processes of filtration using flocculating agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/34—Treatment of water, waste water, or sewage with mechanical oscillations
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5227—Processes for facilitating the dissolution of solid flocculants in water
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S524/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S524/922—Flocculating, clarifying, or fining compositions

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
EP85302925A 1984-04-30 1985-04-25 Flocculants and processes for their preparation Expired - Lifetime EP0160527B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8410971 1984-04-30
GB848410971A GB8410971D0 (en) 1984-04-30 1984-04-30 Flocculants and processes

Publications (3)

Publication Number Publication Date
EP0160527A2 EP0160527A2 (en) 1985-11-06
EP0160527A3 true EP0160527A3 (en) 1987-08-26
EP0160527B1 EP0160527B1 (en) 1990-08-01

Family

ID=10560279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85302925A Expired - Lifetime EP0160527B1 (en) 1984-04-30 1985-04-25 Flocculants and processes for their preparation

Country Status (6)

Country Link
US (1) US4705640A (en)
EP (1) EP0160527B1 (en)
JP (1) JPH0638882B2 (en)
CA (1) CA1255016A (en)
DE (1) DE3578930D1 (en)
GB (1) GB8410971D0 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4710304A (en) * 1984-11-26 1987-12-01 Joseph J. Campbell Method for improving the utilization of polyelectrolytes in dewatering aqueous suspensions
US4943378A (en) * 1985-04-25 1990-07-24 Allied Colloids Ltd. Flocculation processes
US5037881A (en) * 1989-10-30 1991-08-06 American Cyanamid Company Emulsified mannich acrylamide polymers
ATE118224T1 (en) * 1988-12-19 1995-02-15 Cytec Tech Corp HIGH PERFORMANCE POLYMER FLOCCULATING AGENT.
USRE37037E1 (en) 1988-12-19 2001-01-30 Cytec Technology Corp. Emulsified mannich acrylamide polymers
MX18620A (en) 1988-12-19 1993-10-01 American Cyanamid Co HIGH PERFORMANCE POLYMERIC FLOCULANT, PROCESS FOR ITS PREPARATION, METHOD FOR THE RELEASE OF WATER FROM A DISPERSION OF SUSPENDED SOLIDS AND FLOCULATION METHOD OF A DISPERSION OF SUSPENDED SOLIDS
US5723548A (en) * 1988-12-19 1998-03-03 Cytec Technology Corp. Emulsified mannich acrylamide polymers
US5185083A (en) * 1990-05-17 1993-02-09 Air Products And Chemicals, Inc. Separation of solids from aqueous suspensions using modified amine functional polymers
US5171808A (en) * 1990-06-11 1992-12-15 American Cyanamid Company Cross-linked anionic and amphoteric polymeric microparticles
US5698109A (en) * 1990-06-29 1997-12-16 Allied Colloids Limited Purification of aqueous liquor
US5185135A (en) * 1991-08-12 1993-02-09 Nalco Chemical Company Method of dewatering a wet process phosphoric acid slurry
FR2707621B1 (en) * 1993-07-12 1995-10-20 Omnium Traitement Valorisa Process and installation for purifying water with denitrifying physico-chemical sludge.
US5427750A (en) * 1993-10-29 1995-06-27 Nalco Chemical Company Polymers for removing humates from bayer process liquors
US5529588A (en) * 1993-12-06 1996-06-25 Nalco Chemical Company Method of dewatering coal using vinyl amine-containing coagulants
DE4402547C1 (en) * 1994-01-28 1995-03-23 Stockhausen Chem Fab Gmbh Apparatus and process for dissolving water-soluble, pulverulent polymers
US5650465A (en) * 1994-02-23 1997-07-22 Cytec Technology Corp. Ampholytic polymers and polymeric microemulsions
US5380444A (en) * 1994-02-23 1995-01-10 Cytec Technology Corp. Ampholytic polymers and polymeric microemulsions
US5626718A (en) * 1994-09-16 1997-05-06 Betz Laboratories, Inc. Use of polymers in the recycled fiber washing/deinking process
GB9516254D0 (en) * 1995-08-08 1995-10-11 Allied Colloids Ltd Dewatering of aqueous suspensions
US5622533A (en) * 1995-12-13 1997-04-22 Nalco Chemical Company Vinylamine copolymer coagulants for use in coal refuse dewatering
JP3691768B2 (en) * 2001-02-08 2005-09-07 株式会社埼玉種畜牧場 Sludge treatment method
US20040087717A1 (en) * 2002-11-04 2004-05-06 Ge Betz, Inc. Modified polymeric flocculants with improved performance characteristics
GB0405493D0 (en) * 2004-03-12 2004-04-21 Ciba Spec Chem Water Treat Ltd Dewatering process
WO2007119720A1 (en) * 2006-04-12 2007-10-25 Dia-Nitrix Co., Ltd. Method for treatment of sludge or wastewater
DK2343406T3 (en) * 2008-10-29 2014-01-20 Mitsui Chemicals Inc Shrinked composite fiber and nonwoven fabric comprising the fiber
JP2010131469A (en) * 2008-10-30 2010-06-17 Kurita Water Ind Ltd Membrane separation method
CN102176960B (en) * 2008-10-31 2015-02-18 Mt奥科高分子株式会社 Method of dissolving water-soluble polymer
JP5877600B2 (en) * 2011-03-31 2016-03-08 アクアス株式会社 Aggregation processing equipment

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1399598A (en) * 1971-06-24 1975-07-02 Norwich Water treatment process and apparatus

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3002960A (en) * 1958-08-18 1961-10-03 American Cyanamid Co Polyacrylamide preparation
US3278506A (en) * 1961-08-21 1966-10-11 Nalco Chemical Co Water-soluble polymers and copolymers
US3210308A (en) * 1962-07-06 1965-10-05 Dow Chemical Co Polymeric flocculants
DE1570407A1 (en) * 1964-12-21 1969-11-27 Chemolimpex Process for the preparation of the aqueous solution of a high molecular weight flocculant of the polyacrylamide type
US3536646A (en) * 1967-03-13 1970-10-27 Dow Chemical Co Method for polymer dilution
GB1310491A (en) * 1968-11-28 1973-03-21 Paxman & Co Ltd Davey Treatment of sewage sludge
GB1323699A (en) * 1969-11-05 1973-07-18 Dow Chemical Co Method for dlarifying titanium sulphate solutions
GB1428790A (en) * 1973-09-28 1976-03-17 Tate & Lyle Ltd Production of cane sugar
JPS49127880A (en) * 1973-04-13 1974-12-06
US3917529A (en) * 1974-07-01 1975-11-04 Nalco Chemical Co Process for the destabilization and separation of ilmenite (FEO TIO2) tailings
US3977971A (en) * 1974-12-03 1976-08-31 Betz Laboratories, Inc. Method of feeding polymers
US4105558A (en) * 1975-04-08 1978-08-08 Heinrich Hans J Apparatus for draining of muddy liquids
JPS53140275A (en) * 1977-05-12 1978-12-07 Kyoritsu Yuki Kogyo Kenkyusho:Kk Using method for anionic high polymer aggregating and dehydrating agent
CA1178720A (en) * 1981-12-16 1984-11-27 Walter Sencza Continuous polymer feed system for a waste water treatment plant
JPS6038200B2 (en) * 1982-04-22 1985-08-30 栗田工業株式会社 Sludge dewatering method
US4537513A (en) * 1982-08-06 1985-08-27 Allied Colloids Limited Process for dissolving polymeric material
US4529794A (en) * 1984-03-29 1985-07-16 Diatec Polymers Method of rapidly dissolving polymers in water

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1399598A (en) * 1971-06-24 1975-07-02 Norwich Water treatment process and apparatus

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 81, no. 10, 9th September 1974, page 129, abstract no. 51697n, Columbus, Ohio, US; V.T. SOKOLYUK et al.: "Mechanical degradation of flocculants", & IZV. VYSSH. UCHEB. ZAVED., GORN. ZH. 1974, 17(2) 164-6 *
CHEMICAL ABSTRACTS, vol. 85, no. 16, 18th October 1976, page 21, abstract no. 109255t, Columbus, Ohio, US; R. BOYADJIAN et al.: "Physicochemical characterization of polyacrylamide flocculating agents. I. Study in solution", & EUR. POLYM. J. 1976, 12(6), 401-7 *
CHEMICAL ABSTRACTS, vol. 88, no. 10, 6th March 1978, page 63, abstract no. 63514h, Columbus, Ohio, US; A.A. BAICHENKO et al.: "Comparative evaluation of destruction of high molecular weight flocculants", & KOKS KHIM. 1977, (9) 7-9 *
CHEMICAL ABSTRACTS, vol. 94, no. 10, 9th March 1981, page 31, abstract no. 66532x, Columbus, Ohio, US; A.A. BAICHENKO et al.: "Degradation of polyoxyethylene during grinding", & IZV. VYSSH. UCHEBN. ZAVED., GORN. ZH. 1980, (8), 135-7 *

Also Published As

Publication number Publication date
CA1255016A (en) 1989-05-30
JPS6118408A (en) 1986-01-27
US4705640A (en) 1987-11-10
GB8410971D0 (en) 1984-06-06
JPH0638882B2 (en) 1994-05-25
EP0160527A2 (en) 1985-11-06
DE3578930D1 (en) 1990-09-06
EP0160527B1 (en) 1990-08-01

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